[MCP] [1.8] Jars wont be added at the compiled Client Jar

[Flawn_]

Hello everyone, I have the following Problem: I have 2 Jars that i add to my build path and it works fine. Also the Debug mode works fine. But when i Compile it in Eclipse the Class wont be found and i become a game crash. 

[Flawn_]

Im in Offtopic, and i wanted to ask it with *MCP* not with Forge. I mod a Client